﻿<p>A door panel is normally a door leaf that opens to allow people or goods to pass. The parameters of the door panel define the geometrically relevant parameter of the panel,</p>

<p>The <em>IfcDoorPanelProperties</em> are used to parametrically describe the shape and operation of door panels. The parametric definition can be added solely or additionally to the explicit shape representation of the door.</p>

<p>The <em>IfcDoorType</em> can define doors consisting of more then one panel. In this case, one instance of <em>IfcDoorPanelProperties</em> has to be included for each door panel. The <em>PanelPosition</em> attribute, in conjunction with the <em>IfcDoorStyle.OperationType</em> attribute, determines to which panel the <em>IfcDoorPanelProperties</em> apply. The <em>IfcDoorPanelProperties</em> are included in the list of
properties , given by attribute <em>HasPropertySets</em> of the <em>IfcDoorType</em>. More information about the door panel can be included in the same list of the <em>IfcDoorStyle</em> using the <em>IfcPropertySet</em> for dynamic extensions.</p>

<p>The <em>IfcDoorPanelProperties</em> does not hold a geometric representation. However it defines parameters which can be used to create the shape of the door type(which is inserted by the <em>IfcDoor</em> into the spatial context of the project) as shown in Figure 2.</p>
<p>The parameters of the <em>IfcDoorPanelProperties</em> define a standard door panel, including (if given) a proportional width to define non-uniform double swing (or sliding, or folding) doors. The outer boundary of the panel is determined by the 'Profile' shape representation assigned to the <em>IfcDoor</em>, which inserts the <em>IfcDoorType</em>. It has to take the lining parameter into account as well.</p>
<p>&nbsp;</p>

<table>
 <tr>
  <td>
   <table class="gridtable">
    <tr valign="top">
     <td align="left" valign="top"><img src="../../../figures/ifcdoorpanelproperties-fig01.gif" alt="panel 1" border="0" height="187" width="266"></td>
     <td align="left" valign="top">The depth of the panel (swinging, double-acting, and sliding panels) is defined by the <em>PanelDepth</em> parameter.
      <ul>
       <li class="small"><em>PanelDepth</em></li>
      </ul>
     </td>
    </tr>
    <tr valign="top">
     <td align="left" valign="top"><img src="../../../figures/ifcdoorpanelproperties-fig02.gif" alt="panel 2" border="0" height="259" width="304"></td>
     <td align="left" valign="top">For door operation types that include more than one panel, the width of (at least) one panel is
      given by a normalised ratio measure. It determines the width of that panel, which is defined as a ratio of the overall width of the door opening.
      <ul>
       <li class="small"><em>PanelWidth</em></li>
      </ul>
     </td>
    </tr>
   </table>
  </td>
 </tr>
 <tr>
  <td><p class="figure">Figure 2 &mdash; Door panel properties</p></td>
 </tr>
</table>

<blockquote class="history">
HISTORY&nbsp; New entity in IFC2.0.
</blockquote>
<blockquote class="change-ifc2x4">
IFC4 CHANGE&nbsp; Supertype changed to new <em>IfcPreDefinedPropertySet</em>.
</blockquote>
